Pressed steel wheel



W. E. WILLIAMS.

PRESSED STEEL WHEEL.

APPLICATION FILED SEPT. 6. I919.

Patented Oct. 4, 1921.

- salient cor easiest Specification of Letters Patent.

Patented tot 41 -dtfiih Application died September 6, 1919. Serial Ito.322,168.

To all whom it may concern:

Be it known that 1, WILLIAM Emsros Winners a citizen of the UnitedStates,

and a resident of Chicago county of Cook,

and State of lllinois, have invented a new and useful improvement inPressed Steel Wheels, of which the following is a specification.

My invention relates to steel disk wheels having special shapedcorrugations and the objects of the invention are to provide a strongelastic'disk and of a shape that will facilitate its fabrication into awheel having general merits as described herein,

Reference will be had to the accompanying drawing in which F igure 1 isa front elevation of the wheel.

Fig. 2 is a diametrical section.

Fig. 3 is a perspective View of a section of a serrated ring used insecuring the brake drum to the wheel.

Fig. i is a plan detail showing how the disk is made.

In the drawing 1 indicates the axle of a wheel and 2 the ordinary hub asfound on an automobile but in this case adapted to suit my wheel, 3indicates the common brake band drum fitted to my wheel, i indicates theregular demountable rim as commonly used and secured in place by wedgeclips 5.

My corrugated disk is indicated by 6 and it is formed from a straightstrip of steel approximately of a width equaling the length of. thecircumference of the wheel and it is formed into a disk shape bytapering corrugations as indicated in Fig. i. The corrugations startfrom a smooth surface a short distance from the outside thus leaving aflat flange 7 on the rim which is turned over laterally to form a sortof rim 8 for the disk.

The corrugations are deep enough the hub side 9 to take up the edge 10oi the straight strip 11 and bring it around into a circle forming acomplete disk The ends the sheet after forming the disk are welded orotherwise suitably joined acomplete circular disk is formed having asmuch met on the hub circle the rim edge ins arriving at stantial andeificient construction using the metal without waste and getting of allof it.

in forming n these faces rest the inner plane face of the brake drum.The annular main body oft-h disk is dished, its peripheral portion beingcarried toward the front or the wheel, and through the peculiar dishingthere is produced the angle 15 and the bulge 16 in the corrugations.This dishing has the eflect of giving the disk a spring or elastic formin the matter of the thrust strains between the hub and the rim thusproducing an elastic wheel. Further by bringing the rim of the diskforward or toward the front it facilitates the fastening or: the disk tothe flange 13 of rim 14: as the rim 14 then can be made of a simplestrip in the same manner as common rims.

The disk is pressed into the rim l4 and there is provided a clampingring 17 which clamps the disk to the flange 13 of rim 14 by means of therivets 18 or spot welds as desired.

The hub hole of the corrugated disk 6 is hushed by a casting 19 which iscast on the inner .en s of the corrugations. Since the disk is made ofthin metal this cast on bushing usually welds fast to the disk sheet andin any case binds very tightly to the sheet and makes the disk verystiff at the hub. l he casting 19 is machined to fit the hub 2 and issecured thereon by a screw threaded collar 20.

The brake drum 3 is offset at 21 to fit over the inner end or castbushing 19. The rim of the drum is secured to the disk 6 by the notchedring 22 riveted or spot welded at 23 to the drum 3. The notches 24 itover the sides of the corrugations of the disk and flange ends 25 aresecured by rivets or spot welds to the front faces of the corrugationsof the disk 6.

The metal of the dish 6 is quite thin and this notched ring 22 securesthe brake drum 3 to the entire disk and the same time it dams off thevoid spaces oi inside cor rugations along the face of the brake banddrum.

What I claim is:-

l. in a wheel oi the class described, a

dish having tapering corrugations extendradially deeper at hub andshallower rim the back faces of the corrugations on the inside o thewheel adjacent the hub being in a -ne an 1 he pe ipheral zone beingdished outwardl more that plane.

48 described, a disk 1,. in a wheel oi the disk being dished outward atthe point of connection to the rim of the wheel,

3. in a wheel of the class described, a continuous metal disk havingtapering corrugations extending radially outward from the hub region toan annular non-corrugated zone which is dished outward, with respect toa transverse plane 'passing perpendicularly through the free end of theaxle, to a plane beyond the plane of the other parts of the disk, theouter part of said dished portion forming an annular rinrreceivingflange approximately perpendicular to the general plane of the wheel.

4. The combination with a wheel disk having tapered corrugationsextending radially from the hub region to an annular non-corrugated zonewhich is dished outwardly, its outer portion forming an approximatelycylindrical rim-receiving flange or a hub-em circling sleeve rigidlyfixed to the corrugated central margin of the disk.

aeeasso 6. A wheel. composed of a disk havin radially extendingcorrugations and dishe across the'corrugations thereby producing aradial spring construction.

7. In a wheel of the class described, the combination of a hub, aradially corrugated disk, abrake drum fitting over the hub and againstthe disk corrugations and a sleeve ring having one end portion fittingover and rigidly fixed to the drum and. the opposite end portion notchedto fit the contour of the corrugation and rigidly fixed to thereentrantportions of the latter.

8. In a disk wheel having a radially corrugated disk, a straight insideback face for the corrugations adjacent to the brake drum and thecorrugations dished or bent outward from a line radially beyond themargin of the brake drum to the position of the flange on the front faceof the rim.

9. A wheel of the class described having a corrugated disk corrugatedradially and with a bend or dish made transversely of the corrugationsbetween their ends, thus changing the direction of the radial thrusts,with a rim on the periphery of the disk and a hub at the center.

Signed at Chicago, in the county of Cook and State of Illinois, thisthird day of September, 1919.

Wltldlitl liltilfll'llii WilJtlAl'v'lil ll itnesses Ettannr Hanan, H,ZOBEL.

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